As a form of public engagement, science festivals have rapidly expanded in size and number over recent years. However, as with other domains of informal public engagement that are not linked to policy outcomes, existing research does not fully address science festivals’ impacts and popularity. This study adduces evidence from surveys and focus groups to elucidate the perspectives of visitors at a large UK science festival. Results show that visitors value the opportunities afforded by the science festival to interact with scientific researchers and to encounter different types of science engagement aimed at adults, children and families. The most significant self-reported impact of attending a science festival is the development of increased interest in and curiosity about new areas of scientific knowledge within a socially stimulating and enjoyable setting.

Effective science communication can empower research and innovation systems to address global challenges and put public interests at the heart of how knowledge is produced, shared, and applied. For science communication to play this mediating role effectively, we propose a more integrated and “evidence-based” approach. This commentary identifies key issues facing the science communication field. It suggests a series of prescriptions, inspired by the impact of “evidence-based medicine” over the past decades. In practice, evidence-based science communication should combine professional expertise and skills with the best available evidence from systematic research. Steps required to achieve this outcome include more quality assurance in science communication research, significant changes in teaching and training, and improved interfaces between science communication research and practice.

Even in the best-resourced science communication institutions, poor quality evaluation methods are routinely employed. This leads to questionable data, specious conclusions and stunted growth in the quality and effectiveness of science communication practice. Good impact evaluation requires upstream planning, clear objectives from practitioners, relevant research skills and a commitment to improving practice based on evaluation evidence.

This article assesses the use of audience segmentation in visitor studies by analyzing its application in the identity model of visitors proposed by J. Falk (2009) and J. Falk et al. (2007). As a leading example of visitor segmentation, the authors examine this model's application in a specific case at U.S. zoos to elaborate some of its limitations. Conventional short-term, episodic approaches to visitor research should be challenged and supplemented by a more contextually sensitive framework. The authors contend that segmentation approaches, and in particular Falk's theorization and operationalization of an identity model of visitors, are problematic. They argue for a contextual turn that places visitors’ experiences within a holistic and long-term framework of individual life circumstances, relationships, and trajectories. Research and theory from education, sociology, and cultural studies extends existing visitor research approaches by acknowledging complexity, change over time, and the interwoven and developmental nature of sociocultural variables influencing visitors’ appropriation of new ideas and experiences.